Low-temperature environment air source heat pump

The utility model relates to the technical field of air source heat pumps, in particular to a low-temperature environment air source heat pump which comprises a heat pump mechanism and an air filter mechanism installed on the heat pump mechanism, and the heat pump mechanism comprises a pump body case. A transmission shaft is installed at the top of a turbine blade shaft and matched with transmission of the transmission shaft to a crawler belt, at the moment, an eccentric rotating shaft penetrating into the outer end of a protective outer bin can be linked by the crawler belt, and a pull rod movably connected to a positioning piece at the top of the eccentric rotating shaft can drive a traction frame to stretch in a reciprocating mode. At the moment, the rectangular transverse frames in the traction frame can freely slide along the multiple beam rods distributed in a disc shape, when external air passes through the multiple beam rods, floccules and impurities can be blocked by the multiple beam rods, and under